THE secret flight plans of American military planes have revealed for the first time how European countries helped send prisoners, including British citizens, to the Guantanamo Bay prison camp.

Despite widespread criticism of alleged human rights abuses and torture at the US base in Cuba, a Sunday Times investigation has shown that at least five European countries gave the United States permission to fly nearly 700 terrorist suspects across their territory.

Three years ago, The Sunday Times published flight logs of CIA civilian jets in Europe, setting off a controversy over the whether countries across the continent have been secretly involved in America’s rendition of terrorist suspects to countries that carry out torture.

The row is now set to be reignited. Inquiries by Ana Gomes, a Portuguese member of the European parliament, have uncovered not only more CIA flight logs but also more sensitive military flight plans, which until now have remained a closely guarded secret.

Allegations that the CIA held al-Qaida suspects for interrogation at a secret prison on sovereign British territory are to be investigated by MPs, the Guardian has learned. The all-party foreign affairs committee is to examine long-standing suspicions that the agency has operated one of its so-called “black site” prisons on Diego Garcia, the British overseas territory in the Indian Ocean that is home to a large US military base.